In the Woocommerce/Settings/Catalog, I’ve changed all dimensions to 212×212 hard crop.

I can only assume everything should be set to leave my thumbnails alone & display them at their native 212×212, however they’re still getting resized somewhere along the line as the thumbnails are always far blurrier than the original image of the same pixel dimension.

Right now – all of the thumbnails on the “Modules & Cases” page are becoming blurry. The original image files are clear, but when they’re uploaded & chosen as the featured image for my item pages — they are displayed as slightly blurrier than the original. I can only guess the thumbnails are being resized at a slightly smaller resolution, then scaled back up?

Revised question: Is there a way I could upload an image with the thumbnail pixel dimension tag it as the “Featured Image” — then pull the Featured Images for the product page grid thumbnails? That would be ideal — still bypassing any thumbnail generation that’s occurring now. That way I’d have a little more control over what my thumbnail image looks like, and could design the other page images without having to worry about how they’ll crop in the thumbnail.

Is there any way at all use the wordpress “Featured Image” for the product grid thumbnail & have nothing to do with the “Featured Media/Slideshow” content on the product page itself? I know it’s not currently possible — but I have no clue how to resolve this and think it might help to just keep that featured image (to be used as product grid image) from being touched by whatever is re-rendering the original image?

Or is there any way to hard code/override each individual thumbnail image in the custom CSS file?

Sorry for the trouble — just can’t have a low-ressy image when the details matter so much.

Did you try to change the slideshow behaviour? Go to Propulsion > Theme Options > Layout & Settings and change the slideshow behaviour by using the dropdown underneath the “Slideshow behavior on overview pages” headline. By going this way you can upload a preview image for overview pages and other images for the single entry slideshow.